Snap-fastener stud.



PATENTBD 00T'. z, 1906.

H; KERNGOD.

SNAP PASTENER STUD. 'APPLIOATION FILED MAY 7, 190s.

fwdneomo UNITED sTATEs PATENT OEETOE.

HERMAN KERNGOOD., OF BALTIMORE, MARYLAND, AssIGNOR TO'ALMA MANUFACTURING COMPANY Or eALTiMORE OiTY, OE BALTIMORE,

MARYLAND, A CORPORATION lOE MARYLAND.

SNAP-FASTENER STUD- No. 832,579. s

i' Specification of Letters Patent.

' Patented oct. a, iene Application ned May 7,1906. semi No. 315,550.

a certain new and useful Improvement in- Snap-Fastener Studs, of which the following is a full, clear, and exact description.-

This invention relates to snap-fastener studs which are themselves springs and are thereby adapted to be sprun into and out of engagement with the4 comp emental socket member ofthe fastener.

The special object of the invention is to provide means for fastening the spring to the fabric without liabilityof deformation, and thereby producing a spring-stud which will not be crushed or otherwise deformed by Ordinary or anyl rough usage.

The invention consists of a springstud having aninternal spring-supporting openend eyelet, preferably7 a stepped eyelet, through which a closed-end eyelet or hollow rivet is inserted from the side of the fabric opposite to that on which the spring is arranged and its end spread out or u set in the outer end of the stepped eyelet, all as I will proceed now more particularly to set forth l and finally claim.

In the accompanying drawings, illustrating my invention, in the several figures of which like parts are similarly designated, Figure 1 is a plan view of the spring-blank. Fig. 2 is an elevation Of the blank drawn up into the desired form of spring and ready to receive the binder. Fig. 3 is a cross-section of the binder. Fig. 4L is a vertical section of the stepped eyelet. Fig. 5 is a vertical section of the closed-end eyelet or hollow rivet. Fig. 6 is a vertical cross-section of the spring, the stepped eyelet, and the binder assembled. Fig. 7 is a vertical section of the stud applied.

The spring may be made from a blank 1 having a number of legs radiating from a central solid portion which forms the dome of the spring, and this blank is then bent up into the form shown at 2, Fig. 2, with the outer ends of the legs bent out laterally to form the feet 3. A binder 4 is slipped down over these legs when bent up, as in' Fig. 2, said binder having an opening 5*, which opening is surrounded b a flange 6, which rests upon the feet 3. T e legs are contracted, as

l shown in Figs. 6 vand 7, so as to make a bulbshaped spring, and thele shave a slight play within the' opening 5 o the binder. The binder 4 also has a ange 7.

The stepped eyelet 8, having a base-.flange 9 and a flared open end 10, is inserted within the spring, and then the i'iange 7 ofthe binder is bent up under the flange 9 of the e elet, and thus the spring, the eyelet, an the binder are firmly united.

The parts thus far described constitute Vspring-stud- The preferred fastening device for fastening the sprin -stud upon a garment is shown in Figs. 5 an 7 and consists of a closed-end eyelet or hollow rivet 11, which is inserted through the fabric 12 from the side opposite to that upon which the spring is arranged, and then its closed end is upset, clenched,or spread out within the flared end 10 of the stepped eyelet, so as to lock the s ring se curely to the fabric, as shown at 13, ig. 7.

It will be observed that the clenched end of the fastening device 11 is either in contact with or very close to the under side of the spring, and thus itaifords a support for the spring and prevents its deformation by pressure in the setting of the stud and also prevents the deformation of the spring by blows to which it is subject in ordinary and in rough usage, and thus the usefulness of the stud is 1n no wise impaired.

The steppedr eyelet is employed because lits larger diameter affords an internal support for the spring at and near its feet, and its smaller diameteradmits of the use 'of a relatively small fastening device 1 1. Further, one size of fastening device may be used in a wide range of thickness of the fabric, because that portion of the internal eyelet 8 having the larger diameter provides room to accommodate the lateral'enlargement of the fastening device incident to its being broken down or upset in the act of setting when that fastening device is too long. It is a matter of considerable economy to the user to be able to fasten these studs to fabrics of various thickness with one size of fastening device7 and the construction herein described permits this use of la single-size fastening device.

What l claim is- 1. A lsnap-fastener stud, having anouter spring element, and an openvend stepped eyelet whose upper end is inclosed within the roi spring element and its lower -end united to the base of the spring element.

2. A snap-fastener stud, having an outer spring element, an open-end stepped eyelet whose upper end is inclosed within the springr element, and a 'binder for uniting these two parts by their respective bases.

3. A snap-fastener stud, having an outer spring element, and an open-end stepped eyelet whose upper end is inclosed within the spring element and having its open end l flared, the spring element and eyelet united only at their bases.

4. A si'iap-fastener stud, having an outer spring olmnent, an internal open-end stepped eyelct, and a binder uniting them, combined with a fastening device adapted to be passed through the fabric and into the stepped eye-- let and its end clenched between the spring g element and the eyelet and within the open l end of said eyeiet. g l 5. A snap-fastener stud, havingan outer spring element, an internal open-end stepped eyelet, and a binder for uniting them,A combincd with a vhollow rivet adapted to be j passed through the fabric and into the stepped Il eyelet and its end upset Within the open end of the stepped eyelet and between said open end and the spring element and thereby se# cure the device to an article.

6. A. snap-fastener stud, having an outer spring element, an internal open-end eyelet, means to unite them,A and a fastening device for attaching the stud to an article, said fastening device projecting through the internal eyelet and supporting the spring element against being crushed or deformed in use.

7. A snap-fastener stud, comprising an outsi de spring element, an inside stepped supporting-eyelet connected with the base only of the spring element, and a fasteningrivet inserted from beneath the fabric into' and through the eyelet and upset within said eyelet and directly beneath the dome of the spring element and thereby supporting the dome while the stud is being set.

In testimony whereof I have hereunto set my hand this 5th day of May, A. D. 1906,

HERMAN KERNGOOD. W'itnesses GEORGE D. DEAN, GEORGE F. MAASCH. 

